The NiSi 86mm adapter for NiSi 100mm V5/V5 Pro/V6/C4 allows the NiSi 100mm V5 holder, NiSi V5 PRO 100mm Aluminium Filter Holder with Enhanced Landscape C-P or NiSi Cinema C4 Filter Holder Kit to be used with lenses that have a standard filter thread of 86mm. Please note it replaces the main 82mm adapter which also houses the CPL, so you are unable to use the 86mm adaptor at the same time as the CPL. It features a lightweight, aluminum-alloy construction that has a corrosion-resistant, black anodized finish for durability.